US3659869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Construction of a steering knuckle bearing for the lubrication by means of lubricating oil
Assignee: Daimler Benz AG
•
Filing: 1969-11-26
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Granted: 1972-05-02
•
Expires: 1989-11-26
Abstract
Abstract An axle spindle bearing assembly which includes a lower and an upper bearing connected with each other by a bore system provided in the axle spindle bolt while a reservoir space connected to the bore system is arranged in the axle spindle bolt within the area of the upper bearing which is in communication with the section of the bore system leading to the lower bearing, for example, by way of a return checking device.
Inventors
- 👤 Helmut Hase
- 👤 Egbert Siwik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:29
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/10; F16C33/1025; F16C33/106; F16C33/1085; B; B60; B60G; B60G7/00; B60G7/008; B62; B62D; B62D7/00; B62D7/18; F16C33/103; F16C2326/00; F16C2326/01; F16C2326/05; F16C2326/20; F16C2326/24
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
201 words
An axle spindle bearing assembly for the lubrication thereof with lubricating oil; said assembly comprising: an axle spindle bolt means having an upper and a lower bearing means, a central bore within said spindle bolt means for communicating said lower bearing means with said upper bearing means, said central bore including an enlarged upper portion forming an upper reservoir space means, an upper set of transvers bores extending from the central bore to a lower area of the upper bearing means, a lower set of transverse bores extending from the central bore to an upper area of the lower bearing means, a lower reservoir space means arranged below the bottom of the central bore, said lower reservoir space means being operatively connected with a lower area of the lower bearing means, a bore closed by a lubricating nipple leading to said lower reservoir space means, said last mentioned bore being extended by a tubular return-flow checking means projecting into the lower reservoir space means, and an equalization space arranged above the upper reservoir space means which is in communication with the upper area of the upper bearing means and which is provided with an excess pressure valve means discharging into atmosphere.
Claim 2
Dependent Claim
201 words
An axle spindle bearing assembly for the lubrication thereof with lubricating oil; said assembly comprising: an axle spindle bolt means having an upper and a lower bearing means, a central bore within said spindle bolt means for communicating said lower bearing means with said upper bearing means, said central bore including an enlarged upper portion forming an upper reservoir space means, an upper set of transvers bores extending from the central bore to a lower area of the upper bearing means, a lower set of transverse bores extending from the central bore to an upper area of the lower bearing means, a lower reservoir space means arranged below the bottom of the central bore, said lower reservoir space means being operatively connected with a lower area of the lower bearing means, a bore closed by a lubricating nipple leading to said lower reservoir space means, said last mentioned bore being extended by a tubular return-flow checking means projecting into the lower reservoir space means, and an equalization space arranged above the upper reservoir space means which is in communication with the upper area of the upper bearing means and which is provided with an excess pressure valve means discharging into atmosphere.
Claim 3
Dependent Claim
45 words
An axle spindle bearing assembly according to claim 1, characterized in that the equalization space is covered off by a rubber cap and that the excess pressure valve means comprises a bore in the rubber cap which opens in the presence of an excess pressure.
Claim 4
Dependent Claim
39 words
An axle spindle bearing assembly according to claim 2, characterized in that the upper reservoir space means is connected with the section of the bore means leading to the lower bearing means by way of a return-flow checking means.
Claim 5
Dependent Claim
27 words
An axle spindle bearing assembly according to claim 3, characterized in that the return-flow checking means includes a tubular means extending into the upper reservoir space means.
Claim 6
Dependent Claim
26 words
An axle spindle bearing assembly according to claim 4, characterized in that the axle spindle bolt means forms a steering knuckle pin of a steering knuckle.
Claim 7
Dependent Claim
137 words
An axle spindle bearing assembly for the lubrication thereof with lubricating oil; said assembly comprising an axle spindle bolt means having an upper and a lower bearing means, an upper reservoir space means arranged in the axle spindle bolt means for communication with the upper bearing means, lubricant connecting means having an outlet opening in the upper reservoir space means for connecting the upper reservoir space means with the lower bearing means, said lubricant connecting means including a return-flow checking means for preventing return flow of lubricating oil from the upper reservoir space means to the lower bearing means, and an equalization space arranged above the upper reservoir space means which is in communication with the upper area of the upper bearing means and which is provided with an excess pressure valve means discharging into the atmosphere.
Claim 8
Dependent Claim
137 words
An axle spindle bearing assembly for the lubrication thereof with lubricating oil; said assembly comprising an axle spindle bolt means having an upper and a lower bearing means, an upper reservoir space means arranged in the axle spindle bolt means for communication with the upper bearing means, lubricant connecting means having an outlet opening in the upper reservoir space means for connecting the upper reservoir space means with the lower bearing means, said lubricant connecting means including a return-flow checking means for preventing return flow of lubricating oil from the upper reservoir space means to the lower bearing means, and an equalization space arranged above the upper reservoir space means which is in communication with the upper area of the upper bearing means and which is provided with an excess pressure valve means discharging into the atmosphere.
Claim 9
Dependent Claim
47 words
An axle spindle bearing assembly according to claim 6, characterized in that the equalization space is covered off by a rubber cap and that the excess pressure valve means is constituted by a bore in the rubber cap Which opens in the presence of an excess pressure.
Claim 10
Dependent Claim
46 words
An axle spindle bearing assembly according to claim 7, characterized in that the equalization space is in communication with the upper reservoir space by way of lubricating gaps adjacent the upper bearing means and radial bores leading from the upper reservoir space to the lubricating gaps.
Claim 11
Dependent Claim
149 words
An axle spindle bearing assembly for the lubrication thereof with lubricating oil; said assembly comprising an axle spindle bolt means having an upper and a lower bearing means, an upper reservoir space means arranged in the axle spindle bolt means for communication with the upper bearing means, lubricant connecting means having an outlet opening in the upper reservoir space means for connecting the upper reservoir space means with the lower bearing means, said lubricant connecting means including a return-flow checking means for preventing return flow of lubricating oil from the upper reservoir space means to the lower bearing means, a lower reservoir space means arranged within the area of the lower bearing means below the central bore, the lower reservoir space means being operatively connected with the lower area of the lower bearing means, and a bore closed by a lubricating nipple leading to said lower reservoir space means.
Claim 12
Dependent Claim
149 words
An axle spindle bearing assembly for the lubrication thereof with lubricating oil; said assembly comprising an axle spindle bolt means having an upper and a lower bearing means, an upper reservoir space means arranged in the axle spindle bolt means for communication with the upper bearing means, lubricant connecting means having an outlet opening in the upper reservoir space means for connecting the upper reservoir space means with the lower bearing means, said lubricant connecting means including a return-flow checking means for preventing return flow of lubricating oil from the upper reservoir space means to the lower bearing means, a lower reservoir space means arranged within the area of the lower bearing means below the central bore, the lower reservoir space means being operatively connected with the lower area of the lower bearing means, and a bore closed by a lubricating nipple leading to said lower reservoir space means.
Claim 13
Dependent Claim
33 words
An axle spindle bearing assembly according to claim 9, characterized in that the lower reservoir space means is connected with the lower area of the lower bearing means by way of lubricating gaps.
Claim 14
Dependent Claim
36 words
An axle spindle bearing assembly according to claim 9, characterized in that the bore closed by the lubricating nipple is extended by a tubular means projecting into the lower reservoir space means as return-flow checking means.
Claim 15
Dependent Claim
99 words
An arrangement for the uniform and continuous lubrication of an axle spindle bearing assembly having upper and lower bearing means; said arrangement comprising: a lower reservoir in communication with the lower bearing means, an upper reservoir in communication with the upper bearing means, lubricant connecting means for connecting said lower reservoir to said upper reservoir, said lubricant connecting means including return flow checking means for preventing reverse flow from the upper reservoir to the lower reservoir, and a single bottom inlet in communication with the lower reservoir for supplying lubricating oil to both the upper and lower bearing means.
Claim 16
Dependent Claim
99 words
An arrangement for the uniform and continuous lubrication of an axle spindle bearing assembly having upper and lower bearing means; said arrangement comprising: a lower reservoir in communication with the lower bearing means, an upper reservoir in communication with the upper bearing means, lubricant connecting means for connecting said lower reservoir to said upper reservoir, said lubricant connecting means including return flow checking means for preventing reverse flow from the upper reservoir to the lower reservoir, and a single bottom inlet in communication with the lower reservoir for supplying lubricating oil to both the upper and lower bearing means.
Claim 17
Dependent Claim
25 words
A axle spindle bearing assembly according to claim 12, characterized in that the return-flow checking means includes a tubular means extending into the upper reservoir.
Claim 18
Dependent Claim
125 words
An axle spindle bearing assembly for the lubrication thereof with lubricating oil, said assembly comprising: an axle spindle bolt means having an upper and a lower bearing means, an upper reservoir space means arranged in the axle spindle bolt means, lubricant connecting means having an outlet opening in the upper reservoir space means for connecting the upper reservoir space means with the lower bearing means, said lubricant connecting means including a return-flow checking means for preventing return flow of lubricating oil from the upper reservoir space means to the lower bearing means, and a plurality of upper transverse bores positioned below the outlet opening of the lubricant connecting means and extending from said upper reservoir space means for supplying oil to the upper bearing means.
Claim 19
Dependent Claim
125 words
An axle spindle bearing assembly for the lubrication thereof with lubricating oil, said assembly comprising: an axle spindle bolt means having an upper and a lower bearing means, an upper reservoir space means arranged in the axle spindle bolt means, lubricant connecting means having an outlet opening in the upper reservoir space means for connecting the upper reservoir space means with the lower bearing means, said lubricant connecting means including a return-flow checking means for preventing return flow of lubricating oil from the upper reservoir space means to the lower bearing means, and a plurality of upper transverse bores positioned below the outlet opening of the lubricant connecting means and extending from said upper reservoir space means for supplying oil to the upper bearing means.
Claim 20
Dependent Claim
77 words
An axle spindle bearing assembly according to claim 14, characterized in that said lubricant connecting means includes a central bore, said central bore being enlarged within the area of the upper bearing means to form said upper reservoir space means, said upper transverse bores communicating with a lower area of the upper bearing means, and in that a lower set of transverse bores extends from said central bore to an upper area of the lower bearing means.
Claim 21
Dependent Claim
26 words
An axle spindle bearing assembly according to claim 14, characterized in that the axle spindle bolt means forms a steering knuckle pin of a steering knuckle.
Claim 22
Dependent Claim
68 words
An axlE spindle bearing assembly according to claim 15, characterized in that a lower reservoir space means is arranged within the area of the lower bearing means below the central bore, and in that the lower reservoir space means is operatively connected with the lower area of the lower bearing means, and in that a bore closed by a lubricating nipple leads to said lower reservoir space means.
Claim 23
Dependent Claim
33 words
An axle spindle bearing assembly according to claim 17, characterized in that the lower reservoir space means is connected with the lower area of the lower bearing means by way of lubricating gaps.
Claim 24
Dependent Claim
36 words
An axle spindle bearing assembly according to claim 17, characterized in that the bore closed by the lubricating nipple is extended by a tubular means projecting into the lower reservoir space means as return-flow checking means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-02 | 1975-11-01 | 1976-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-02 | 1979-11-01 | 1980-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-02 | 1983-11-01 | 1984-05-02 | $7700.00 | Window Closed / Lapsed |